the Pop Warner thing stays over at the Wide WOrld of Sports for competitions, football and cheer. They get some park time, but it's no worse than normal groups of kids. The worst part for me was the year I stayed at Dixie Landings and some of them were there, overflow from the values, or they spent more to stay they. Anyway they just overwhelmed the food court in the morning. THat was it. But after being at Pop a couple of months ago and being in the food courst at breakfast time, it was no less crowded then and there were no groups.
The thing with the MVMCP is it is a lot less crowded. You don't have to leave the park, you can stay all day and night, you will just have to get a wrist band to prove you have paid the extra dollars for the tix. I have done it twice, once with siter and nephew and once alone. Both times it was fun.
If you have an AP, don't forget that there are usually several party dates that have an AP discount.